Merge pull request #60 from klocey/master

Revised Table 3 caption; read through paper
Remove most of the material on in-house reuse from the Introduction
Merge pull request #62 from ethanwhite/new-intro

Remove most of the material on in-house reuse from the Introduction
Editorial work throughout the ms
Moving to a simple make file for building the pdf
Merge pull request #64 from ethanwhite/moving-to-make

Moving to a simple make file for building the pdf
Merge pull request #63 from ethanwhite/ms-revision

Editorial work throughout the ms
Removing last paragraph from license section
Making the recommendation of blanks for nulls more explicit
Merge pull request #66 from ethanwhite/null-edits

Making the recommendation of blanks for nulls more explicit
Merge pull request #65 from ethanwhite/shorten-licenses

Removing last paragraph from license section
Adding acknowledgement for Dave Harris
Merge pull request #67 from ethanwhite/new-acknowledgement

Adding acknowledgement for Dave Harris
Rearranged and tighten the share your data section
Merge pull request #68 from dmcglinn/master

Rearrange and tighen the share your data section
Minor cleanup
Final cleanup

1. Fix the tables so that they display properly (3.5 hours; sigh)
2. Reference cleanup (5 minutes)
3. Proper alignment of last sentence in section 1 (30 seconds)
Merge pull request #69 from ethanwhite/final-cleanup

Final cleanup
Adding line numbers, increasing font size, changing font
Adding sentence to abstract summarizing broad categories of recommendations